201000210202221 has 4 divisors (see below), whose sum is σ = 268000280269632. Its totient is φ = 134000140134812.

The previous prime is 201000210202163. The next prime is 201000210202273. The reversal of 201000210202221 is 122202012000102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201000210202221 - 2¹¹ = 201000210200173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201000210202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000210202021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33500035033701 + ... + 33500035033706.

It is an arithmetic number, because the mean of its divisors is an integer number (67000070067408).

Almost surely, 2^{201000210202221} is an apocalyptic number.

It is an amenable number.

201000210202221 is a deficient number, since it is larger than the sum of its proper divisors (67000070067411).

201000210202221 is an equidigital number, since it uses as much as digits as its factorization.

201000210202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67000070067410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201000210202221 its reverse (122202012000102), we get a palindrome (323202222202323).

The spelling of 201000210202221 in words is "two hundred one trillion, two hundred ten million, two hundred two thousand, two hundred twenty-one".